A dress-making operation is being designed as an assembly line. The table below shows the tasks that need to be performed, their task times, and preceding tasks. If the goal is to produce 30 dresses per hour, answer the questions.

Dress-Making Task Information
Work Element		Immediate Predecessor		Task Time (sec)
A. Cut dress body		None		29
B. Cut sleeves		None		40
C. Cut collar		None		18
D. Sew dress body		A		100
E. Sew sleeves to dress		B, D		24
F. Sew collar to dress		C, D		50
G. Hem dress		D,E, F		50
H. Package dress		G		92

Compute the cycle time.

C = enter cycle time in seconds per dress seconds/dress

eTextbook and Media

Which task is the bottleneck?

Task select a bottleneck task FCEGHDAB is the bottleneck.

eTextbook and Media

What is the maximum output for this line?

Maximum Output = enter maximum output in dresses per hour dresses per hour.

eTextbook and Media

Compute the theoretical minimum number of stations. (Round your answer up to the nearest whole number.)

TM = enter theoretical minimum number of stations rounded to the nearest whole number stations.

eTextbook and Media

Assign work elements to stations, using the longest task time rule.

Work Station	Task Selected
select a work station 42351	select a task HEFBGDAC
select a work station 51243	select a task CEBFAHGD
select a work station 23451	select a task AHEGBDCF
select a work station 32415	select a task BHGACEFD
select a work station 25341	select a task HEAFDGBC
select a work station 41532	select a task ECFAHDBG
select a work station 32415	select a task FBHEADCG
select a work station 31425	select a task ACGEDBHF

eTextbook and Media

Compute the efficiency and balance delay of your assignment. (Round your answers to 2 decimal places, the tolerance is +/-0.05)

Efficiency	=	enter efficiency in percentages rounded to 2 decimal places %
Balance Delay	=	enter balance delay in percentages rounded to 2 decimal places %

eTextbook and Media